221561028

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{199}}^1$

素因数の和:299

約数の個数: 144

約数和(自身を含む): 635376000

約数和(自身を除く): 413814972

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 61, 78, 108, 117, 122, 156, 169, 183, 199, 234, 244, 338, 351, 366, 398, 468, 507, 549, 597, 676, 702, 732, 793, 796, 1014, 1098, 1194, 1404, 1521, 1586, 1647, 1791, 2028, 2196, 2379, 2388, 2587, 3042, 3172, 3294, 3582, 4563, 4758, 5174, 5373, 6084, 6588, 7137, 7164, 7761, 9126, 9516, 10309, 10348, 10746, 12139, 14274, 15522, 18252, 20618, 21411, 21492, 23283, 24278, 28548, 30927, 31044, 33631, 36417, 41236, 42822, 46566, 48556, 61854, 67262, 69849, 72834, 85644, 92781, 93132, 100893, 109251, 123708, 134524, 139698, 145668, 157807, 185562, 201786, 218502, 278343, 279396, 302679, 315614, 327753, 371124, 403572, 437004, 473421, 556686, 605358, 631228, 655506, 908037, 946842, 1113372, 1210716, 1311012, 1420263, 1816074, 1893684, 2051491, 2840526, 3632148, 4102982, 4260789, 5681052, 6154473, 8205964, 8521578, 12308946, 17043156, 18463419, 24617892, 36926838, 55390257, 73853676, 110780514, 221561028]

約数ペア:

[(1, 221561028), (2, 110780514), (3, 73853676), (4, 55390257), (6, 36926838), (9, 24617892), (12, 18463419), (13, 17043156), (18, 12308946), (26, 8521578), (27, 8205964), (36, 6154473), (39, 5681052), (52, 4260789), (54, 4102982), (61, 3632148), (78, 2840526), (108, 2051491), (117, 1893684), (122, 1816074), (156, 1420263), (169, 1311012), (183, 1210716), (199, 1113372), (234, 946842), (244, 908037), (338, 655506), (351, 631228), (366, 605358), (398, 556686), (468, 473421), (507, 437004), (549, 403572), (597, 371124), (676, 327753), (702, 315614), (732, 302679), (793, 279396), (796, 278343), (1014, 218502), (1098, 201786), (1194, 185562), (1404, 157807), (1521, 145668), (1586, 139698), (1647, 134524), (1791, 123708), (2028, 109251), (2196, 100893), (2379, 93132), (2388, 92781), (2587, 85644), (3042, 72834), (3172, 69849), (3294, 67262), (3582, 61854), (4563, 48556), (4758, 46566), (5174, 42822), (5373, 41236), (6084, 36417), (6588, 33631), (7137, 31044), (7164, 30927), (7761, 28548), (9126, 24278), (9516, 23283), (10309, 21492), (10348, 21411), (10746, 20618), (12139, 18252), (14274, 15522)]